White Optimist sleeve sail with reef, ideal for sailing schools. When using the reef eye, the boom goes up and gives more headspace for the sailor. A sleeve pocket for the Optimist mast at the luff with a cut out for the sprit halyard block. This sail is made of strong 3.8 oz high quality 100% dacron sailcloth. This Optimist sail has 4 heavily reinforced corners, a loose foot and webbing loops at both the tack and the clew point to accommodate the boom. This Optimist sail does not have any sail battens. Best to use with the fixed sleeve school mast set EX1053. Also available: Optimist mast extenders, 10 and 20 cmThese mast extenders for the Optimist sleeve mast extends the mast with 10 or 20 cm to create more space. These mast extenders can be dropped in the top of the Optimist sleeve mast and moves the sail and boom up.   EX1061WR